physics

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Calculate the speed of an 7.6×104 kg airliner
with a kinetic energy of 1.2 × 109 J.
Answer in units of m/s

  • physics -

    .5 (7.6 * 10^4) v^2 = 1.2 * 10^9

    v^2 = .3158 * 10^5
    or
    v^2 = 3.158 * 10^4

    v = 1.78 * 10^2
    or
    v = 178 m/s

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